Hinge

Abstract

The hinge has two leaves with interengaging knuckles. A plastic coated metal hinge pin extends through the knuckles and the knuckles are crimped onto the plastic coated hinge pin. The tighter the knuckles grip the pin the more the plastic is deformed and the greater will be the torque required to operate the hinge. The plastic is extruded onto the pin to bond the plastic to the pin.

We claim: 
     
       1. A hinge comprising, first and second leaves having interengaging formed barrels with aligned apertures through the barrels,   a hinge pin,   a plastic coating bonded on the pin,   said hinge pin being mounted in said apertures and said barrels being crimped onto the hinge pin to engage and radially compress said plastic coating,   said plastic coating having a self-lubricating characteristic when lightly compressed and gripped by said barrels and developing increasing resistance to hinge operation as the barrels compress and grip said coating with increasing force.   
     
     
       2. A hinge comprising, first and second leaves having interengaging knuckles, a metal hinge pin extending through said knuckles, a plastic coating bonded on said hinge pin,   said knuckles being crimped into said coated hinge pin to compress and grip the plastic with the degree of compression of the plastic determining the torque required to operate the hinge.